//
//  ZZNavigationControllerStack.h
//  zhengzai-tv
//
//  Created by SC on 16/7/5.
//  Copyright © 2016年 zhengzai.tv. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "Singleton.h"

@interface ZZNavigationControllerStack : NSObject

AS_SINGLETON

+ (void)pushNavigationController:(UINavigationController *)navigationController;

+ (UINavigationController *)popNavigationController;

+ (UINavigationController *)topNavigationController;

+ (void)clear;

@end
